Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Stock Repurchase Program (Detail) - USD ($) shares in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Oct. 29, 2018
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 129,688,000
Stock repurchased during period, value	$ 20,954,000	$ 61,690,000	$ 142,262,000
Repurchase Program October 2018 [Member]
Equity, Class of Treasury Stock [Line Items]
Authorized common stock to be repurchased				$ 200,000,000
Stock Repurchase Program, Aggregate Number of Shares Repurchased		1,601
Shares repurchased, value		$ 70,312,000
Repurchase of common stock (in shares)		1,398
Stock repurchased during period, value		$ 61,690,000